The Planted Tank Forum - View Single Post - activated carbon kill plants?
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Old 06-29-2009, 08:30 PM   #4
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Agreed, it shouldn't effect your plants in any real way. Even if it soaked up all your ferts, forever, your plants won't just die either. As far as I have read, carbon only lasts for a few days before it stops doing much. You have other issues but you still may want to loose the carbon for more media of another type, or use Purgion which should give you the benifts of Carbon and a lot more.
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